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  Accelerating Path Tracing by re-using Paths

Bekaert, P., Sbert, M., & Halton, J. (2002). Accelerating Path Tracing by re-using Paths. In Rendering Techniques 2002 (pp. 124-135). Aire-la-Ville, Switzerland: Eurographics.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-2ED6-D Version Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-2ED8-9
Genre: Conference Paper

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 Creators:
Bekaert, Philippe1, Author           
Sbert, Mateu, Author
Halton, John, Author
Debevec, Paul, Editor
Gibson, Simon, Editor
Affiliations:
1Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              

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 Abstract: This paper describes a new acceleration technique for rendering algorithms like path tracing, that use so called gathering random walks. Usually in path tracing, each traced path is used in order to compute a contribution to only a single point on the virtual screen. We propose to combine paths traced through nearby screen points in such a way that each path contributes to multiple screen points in a provably good way. Our approach is unbiased and is not restricted to diffuse light scattering. It complements previous image noise reduction techniques for Monte Carlo ray tracing. We observe speed-ups in the computation of indirect illumination of one order of magnitude.

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Language(s): eng - English
 Dates: 2003-09-022002
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 202153
Other: Local-ID: C125675300671F7B-4D7C5B1D238D67FBC1256BCA003B5297-Bekaert_egrw2002
 Degree: -

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Title: Rendering Techniques 2002
Place of Event: Pisa, Italy
Start-/End Date: 2002-06-26 - 2002-06-28

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Title: Rendering Techniques 2002
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: Aire-la-Ville, Switzerland : Eurographics
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 124 - 135 Identifier: -